# Blizzard Entertainment

**Canonical:** https://apis.io/providers/blizzard-entertainment/  
**Website:** https://www.blizzard.com/  
**APIs profiled:** 18

Blizzard Entertainment is an American video game developer and publisher and a subsidiary of Activision Blizzard. Blizzard exposes a Battle.net Developer Portal that provides public OAuth 2.0 protected APIs returning game data and player profile data for its major franchises including World of Warcraft, Diablo III, StarCraft II, and Hearthstone.

## Kin Score — 47.8 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 47.8).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 61.3 |
| Governance | 60.6 |
| Contract Governance | 60.6 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 52.6 |
| Access Clarity | 52.6 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high).

## APIs (18)

- **Blizzard Entertainment Achievements API** — Retrieve achievement reference data.
- **Blizzard Entertainment Acts API** — Retrieve Diablo III act reference data.
- **Blizzard Entertainment Artisans API** — Retrieve artisan and recipe reference data.
- **Blizzard Entertainment Auctions API** — Retrieve live auction-house listings per connected realm.
- **Blizzard Entertainment Authorization API** — User-context authorization endpoints.
- **Blizzard Entertainment Card Backs API** — Retrieve Hearthstone card-back data.
- **Blizzard Entertainment Cards API** — Search and retrieve Hearthstone cards.
- **Blizzard Entertainment Characters API** — Retrieve character class and skill reference data.
- **Blizzard Entertainment Decks API** — Decode Hearthstone deck codes.
- **Blizzard Entertainment Guilds API** — Retrieve guild profile data.
- **Blizzard Entertainment Items API** — Retrieve item type and item reference data.
- **Blizzard Entertainment Ladders API** — Retrieve ladder, grandmaster, and season data.
- **Blizzard Entertainment Metadata API** — Retrieve Hearthstone metadata reference data.
- **Blizzard Entertainment Mounts API** — Retrieve mount index and detail data.
- **Blizzard Entertainment Profiles API** — Retrieve player career and hero profile data.
- **Blizzard Entertainment Realms API** — Retrieve realm and connected-realm reference data.
- **Blizzard Entertainment Token API** — Token issuance and inspection endpoints.
- **Blizzard Entertainment UserInfo API** — OpenID Connect userinfo endpoint.

## Agentic access (1)

- **Blizzard Entertainment Agentic Access** — 26 operations · 2 acting

## Security (2)

- **Blizzard Entertainment Authentication** — http · 1 scheme
- **Blizzard Entertainment Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Blizzard Entertainment Plans Pricing**

## Use cases (5)

- **Companion Apps** — Build mobile and web companion apps that surface character, guild, ladder, and profile data
- **Theorycrafting and Stats Sites** — Power character optimizer, mythic-plus rank tracker, and deck-tracker sites with first-party data
- **Esports Tooling** — Pull ladder and seasonal data for esports brackets, statistics, and broadcast overlays
- **Add-on and Mod Ecosystems** — Provide authoritative reference data to community add-on libraries and mod managers
- **Account Linking** — Let players authenticate with their Battle.net account in third-party communities and tournament platforms

## Tags

Games, Entertainment, Video Games, Game Data, Battle.net

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/blizzard-entertainment/). Scores are computed from the provider's own public artifacts under a published rubric.